What if Ochiyo's offer is accepted?

[Gluttony]

As much as I seriously doubt any party that's made it this far would accept Ochiyo's offer in Munasukaru's Penance, I do wonder: What happens if they do?

Do the five storms succeed, with Munasukaru's word protecting the PCs? Does her word get broken? Do new adventurers come in and pick up the journey where these PCs failed, and fell to cowardice, or temptation?

Clearly this is hypothetical stuff, but the AP only outlines what happens if they refuse the offer or attack. I'm interested in knowing what the alternative would result in.

[Valandil Ancalime]

I suppose a willing DM could continue the game with the characters, but then it is entirely up to that DM to create what would happen.

[Andric]

You know, I had put some thought into this as well, because quite frankly, my players scare me sometimes when they make moral choices.

Spoiler:

Realistically, Munasukaru would honor her word. But there are a few things you should probably note. She likely may not be able to honor her word, if the oni of five storms have truly forgotten about her. And if the players decide to just up and leave, remember that the Kami are waiting, and will likely notice if the players are just abandoning their mission. Additionally, if you have a main NPC traveling with them, and it looks like the party is starting to lean toward accepting the offer, the NPC can cut in and make some key points.

1: Remind the players that they are Amatatsu Scions. Hopefully they have learned by now that the Five Storms want this family's remnants dead. As long as they exist alive, the five storms can never just go through with their plans. Even if the PCs make a plea to join them, they are still capable of challenging the five storms at any point for control of the throne, and if not them, then their own children. So the Five Storms Ninja will likely never cease to attack as long as they live.

2: When Ameiko ascends the throne, she could just as easily have wealth and pleasure flow naturally to the PCs. Imagine the awards they may receive from Minkai's royal vaults when the players become the saviors of Minkai.

3: If those aren't enough, try intimidation. The Kami are waiting just outside. After a certain event (The Ancestral Spirits encounter) the PCs will likely know that they are vastly outnumbered by spirits who are far more powerful than hobgoblins and Araneas. While the encounter isn't meant to be intimidating, they should be reminded by the amount of power that the ancient spirits hold in the land.

4: If one of your PCs has been trying to form a friendship with Miyaro, remind them that its not possible if they were to forsake their sworn duty. This could also be used with significant NPCs who the players have formed strong bonds with.

If all else fails, conclude the adventure right there and wait for the Tide of Honor to come out, then augment it to reflect the PCs decisions.